main()
{
fpointer = add; /* Put the address of 'add' in 'fpointer' */
printf("%d \n", fpointer(4, 5)); /* Execute 'add' and print results */
fpointer = sub; /* Repeat for 'sub' */
printf("%d \n", fpointer(6, 2));
}
//Function for checking type of string.
//Essentially compressed replacement for isX()
char* single_to_str(char* src, int (*fpointer)(int)){
if(fpointer(*src)){
char* temp=malloc(sizeof(char)*1);
int i=0;
for(i=0;fpointer(*src);i++){
temp[i]=*src;
temp=realloc(temp,sizeof(char)*i+1);
src++;
}
temp[i]='\0';
return temp;
}
return 0;
}
